MXPA97005195A - Hygienic paper smooth by drying with air and processing fabricac - Google Patents

Abstract

A high density smooth toilet paper. Toilet paper has a relatively low caliber, as well as high smoothing and high density. The toilet paper is satin from a multiple density coil, dried by ai

Description

HYDRAULIC PAPER ICO SMOOTH BY DRYING WITH AIR AND FABRICATION PROCESS BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a toilet paper, and more particularly to a toilet paper having a soft feel. BACKGROUND OF THE INVENTION Toilet paper is well known in the art, and is a staple in everyday life. Toilet paper commonly has two uses, toilet paper for bathing and facial tissues. Both require some attributes, in order to be accepted by the consumer. One of the most important attributes is the softness. The softness that the user feels when handling or using toilet paper is a subjective evaluation of the feel to the touch. The softness can not be measured directly. However, the relative values of smoothness can be measured in a softness marker unit (PSU), according to the technique, established in commonly assigned US Pat. No. 5,354,425, issued October 1, 1994, issued to Mackey et al. associated, except that the samples are not allowed to be rated as equally soft. This patent is incorporated by reference in the present description. It has been found that the softness is related to: 1) the topography of the surface of the toilet paper, 2) the flexibility of the toilet paper, and 3) the friction coefficient of slip-adhesion of the surface of the toilet paper. In the art some attempts have been made to improve the softness by increasing the flexibility of the toilet paper. For example, in the commonly assigned US Patent 4, 191, 609, issued to Trokhan, it has been shown to be a commercial success, the increase of flexibility through a distribution of low density regions, by bilateral stages. However, it has been well recognized in the art, that those hygienic papers having multiple density, which provide a softness and flexibility of great success in the market, have an inherently distinctive topography. However, it has been shown that, by improving and still maintaining the smoothness provided by a smoother surface topography, said softness is difficult to achieve. The reason for this difficulty lies in the exchange between the topography of the smoother surface and the increase in density. Normally, densification increases the fiber to fiber contact, potentially causing a bond at the contact points. This negatively impacts the flexibility, and therefore the softness. This relationship of interdependence between density and smoothness has been considered as virtually irrefutable in the commonly assigned US Patent 4,300,981, issued on November 17, 1994, granted to Carstens. In the patent 4,300,981. granted to Carstens, also describes the PSU softness meter, and is incorporated herein by reference. This relationship is also set forth in European Patent Application 0 613 979 A1, of compeatency, published on September 7, 1994, as an increase in void volume (eg, decreased density) that is related to improved smoothness. Unfortunately, this interrelation has opposite effects that are perceived by consumers of toilet paper products. Unexpectedly, applicants have discovered a way to decouple the density-to-softness relationships of prior art.

In this way, it is now possible to improve the topography of the surface of the toilet paper, without encountering the concomitant loss of softness that occurred in the prior art. Accordingly, it is possible to obtain, with the present invention, levels of softness at relatively high densities. The absorbency at the highest density is also maintained unexpectedly. This goes against the beliefs of the previous art, illustrated in the European Patent Application 0 616 074 A1, in which it is maintained that a lower density results in leaves with greater volume and absorbency. Additionally, unexpectedly, the need has been discovered to use a multiple density substrate to make a toilet paper in accordance with the present invention. This is unexpected, because multi-density toilet paper, particularly air-dried toilet paper, generally has a lower density than conventionally dried toilet paper, which has a uniform density throughout. Thus, instead of using a high-density toilet paper as the starting point for the glazing process, hygienic papers of relatively lower densities should be used as a starting point.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a graphic representation of the relationship between smoothing and density, for the hygienic papers set forth in Examples 1 to 5, which follow. Fig. 2 is a graphic representation of the relationship between the softness and the caliper for the toilet papers set forth in Examples 1 to 5, which follow.

SUMMARY OF THE INVENTION The present invention comprises a sheet of toilet paper. Toilet paper is a cellulosic fibrous structure, of multiple density of a single macroscopic plane. The toilet paper has a smoothing with a physiological smoothing surface, less than or equal to about 800 microns, preferably less than or equal to about 750 microns, and more preferably less than or equal to about 700 microns, and still more preferably, less than or equal to at 650 microns approximately. The toilet paper can be manufactured from an air-dried substrate. The substrate can be dried to a moisture level of from about 1.9% to about 3.5 percent. The toilet paper can be subsequently coated by applying a pressure of from about 90 to 180 psi, and from 130 to 300 pli in the cut.

DETAILED DESCRIPTION OF THE INVENTION The toilet paper according to the present invention comprises a cellulosic fibrous structure of a single macroscopic plane. Toilet paper is bidemensional, although not necessarily flat. The meaning of "a single macroscopic plane" is that the toilet paper lies mainly in a single plane, recognizing that the undulations in the topographies of the surface exist on a microscopic scale. Therefore, toilet paper has two opposite sides. The term "cellulosic" means that the toilet paper comprises at least 50% cellulosic fibers. The cellulose fibers can be either hardwood or softwood, and processed in the form of elaborate, thermomechanical, ground pulp, etc. , which are all well known in the art, and do not form part of the present invention. The term "fibrous" refers to elements that are similar to fibers, which have a major axis with a dimension significantly larger than the other two orthogonal dimensions thereof. The term "sheet" refers to the macroscopic formation of a plane of cellulosic fibers, which is separated from the web in the form of a single sheet and which does not change in the basis weight, unless the fibers are adhered a, or removed from it. It should be recognized that two or more sheets may be combined together - with either or both, having been fabricated, either or both, in accordance with the present invention. The toilet paper of the present invention is air dried, and can be manufactured in accordance with any of the commonly assigned patents, whether US Pat. 4, 191, 609 issued March 4, 1980, issued to Trokhan; U.S. Patent 4,637,859 issued January 20, 1989, issued to Trokhan; or U.S. Patent 5, 334,289 issued August 2, 1994, issued to Trokhan and Associates, all of which being incorporated in the present description by reference. In accordance with the aforementioned patents. Air drying produces a multiple density toilet paper. The multiple density of air dried toilet papers generally has a lower density than that of conventionally dried toilet papers which use a felt press and which contain a single region of a density. In particular, a multiple density toilet paper manufactured in accordance with the three aforementioned patents contains two regions, a region of high density and separate protuberances. The protuberances are of particularly low density, in relation to the rest of the toilet paper. The high density regions may contain separate regions juxtaposed with the low density regions, or may comprise essentially continuous network work. Preferably, although not necessarily, the toilet paper is made in layers according to commonly assigned US Patent 3,994,771, issued to Morgan and Associates, which is incorporated herein by reference. The toilet paper according to the present invention has a smoothing with a physiological smoothing surface (PSS) less than or equal to about 800 microns, preferably less than or equal to about 750 microns, and more preferably less than or equal to about 700 microns and still more preferably, less than or equal to 650 microns approximately.

The surface of physiological smoothing, is measured according to the procedure established in the International Paper Physics Conference of 1991, TAPPI Book 1, more particularly the article entitled "Methods for the Measurement of the Mechanical Properties of Tissue Paper ", by Ampulski and Associates, which is on page 19. The specific procedure used, is on page 22, with the title" Physiological Surface Smoothness ". However, the PSS value obtained by the method described in this article is multiplied by 1, 000, to calculate the conversion from millimeters to microns. This article is incorporated herein by reference, with the purpose of showing how the softness measurements of the toilet paper made in accordance with the present invention are made. The physiological smoothing surface is also described in commonly assigned U.S. Patent 4,959, 125, issued September 25, 1990, issued to Spendel and U.S. Patent 5,059,282 issued October 22, 1991, issued to Ampulski and Associates, which are incorporated in the present description as reference. For the smoothing measurement, a sample of toilet paper is selected. The sample is selected to avoid wrinkles, ripping, perforations, or gross deviations from a macroscopic plane. The sample is conditioned at a temperature of 71 ° to 75 ° F, and from 48 to 52 percent relative humidity, for at least 2 hours. The sample is placed on a motorized table, and fixed in place in magnetic form. The only deviation from the aforementioned procedure is that sixteen strokes (eight forward, eight backwards) are used per sample, instead of the twenty strokes placed on the toilet paper established in the aforementioned procedure. Each stroke forward and backward is offset transversely from the adjacent stroke forwards and backwards by approximately one millimeter,. The sixteen traces of the same sample are averaged to obtain the smoothing value of said sample. For the measurement of the smoothing, any face of the toilet paper can be selected, making sure that all the strokes are taken from the same face. If any of the faces of the toilet paper meets any of the smoothing criteria established herein, it is considered that the entire sample of toilet paper is within that criterion. Preferably both sides of the toilet paper meet the above criteria. The toilet paper according to the present invention preferably has a relatively low caliber. The gauge is measured according to the following procedure, without considering the micro-deviations of absolute plane inherent to the multiple density hygienic paper, prepared in accordance with the aforementioned incorporated patents. The toilet paper is conditioned before gauge measurement in temperatures from 71"to 75 ° F, and from 48 to 52 percent relative humidity for two hours. If the size of the toilet paper is being measured, it is removed and If the size of the facial tissue is being measured, the sample is taken from near the center of the package, the sample is selected and then conditioned for an additional 15 minutes.The size is measured using a micrometer Low Load Thread-Albert, Model 89-11, marketed by Thwing-Albert Instrument Company of Philadelphia, Pa. The micrometer, charges the sample at a pressure of 95 grams per square inch, using a 2.0-inch diameter compression shoe , and an anvil of support of 2.5 inches in diameter.The micrometer has a capacity of measurement in a range of from 0 to 0.0400 inches.It should be avoided if possible. Decorated jewels, perforated, with shore effects, etc. of the toilet paper. The size of the toilet paper according to the present invention is preferably less than or equal to 1 1 mils, more preferably less than or equal to about 10 mils, and still more preferably less than or equal to about 9.5 mils. An expert in the art will understand that one thousandth, is equivalent to 0.001 inches. The toilet paper according to the present invention preferably has a basis weight of from about 7 to about 35 pounds per 3,000 square feet. The basic weight is measured according to the following procedure. The toilet paper sample is selected as described above, and conditioned at a temperature of from 71 ° to 75 ° F and, from 48 to 52 percent relative humidity, for a minimum of two hours. A stack of six sheets of toilet paper is placed on top of the given cutting die. The die is square, having dimensions of 3.5 inches by 3.5 inches, and may have a soft polyurethane rubber inside the square to easily remove the sample from the die after cutting. The six samples are cut using the die, and a suitable pressure plate cutter, such as a Twing-Albert Alfa Hydraulic Pressure Sample Cutter, Model 240-10. A second stack of six samples is also cut in this way. The two stacks of six samples are then combined in a stack of twelve layers and conditioned for at least 15 additional minutes at a temperature of 71 ° to 75 ° F, and 48 to 52 percent humidity. The samples of twelve layers are then weighed on a calibrated analytical scale, which has a resolution of at least 0.0001 grams.

The scale is kept in the same room in which the samples were conditioned. A suitable scale is manufactured by Sartorius Instrument Company, Model A200S. The base weight, in units of pounds per 3,000 square feet, is calculated according to the following equation: Weight of twelve samples of layers (grams) x 3000 (453.6 g / lb) x (12 layers) x (12.25 in. Squared per layer / 144 square inches / square feet) The base weight in units of pounds per 3,000 square feet for these 12-layer samples is calculated more simply, using the following conversion equation: Weight Base (Ib / 3, 000 ft2) = Weight of 12 cushioned layers (g) x 6.48 The density units used in the present description are in grams per cubic centimeter (g / cc). Those density units of g / cc, may be convenient to also express the base weight in units of grams per square centimeter. The following equation can be used to make this conversion: Weight of pads of 12 layers (g) Base of Weight (g / cm2) = 948.4 The toilet paper of the present invention preferably has a relatively high density. The density of the toilet paper is calculated by dividing its base weight by its size. In this way, the density is measured in a macro scale, considering the sample of toilet paper as an integer, and without considering the different densities between the individual regions of the paper. The toilet paper according to the present invention preferably has a density of at least about 0.100 grams per cubic centimeter, more preferably at least 0.110 grams per cubic centimeter approximately, and still more preferably at least 0.120 grams per cubic centimeter. approximately cubic centimeter. The process for making the toilet paper according to the present invention comprises the following steps. First there is provided an aqueous dispersion of fibers for papermaking, and a foraminous forming surface, such as a Fourdrinier band. The embryo coil is in contact with the Fourdrinier band, to form on the band an embryonic coil of fibers for the manufacture of the paper. An air drying band is also provided, as described above. The Fourdrinier band, and the embryonic coil are then transferred to the air drying band. During the transfer, a differential pressure is applied through the air drying band. This differential pressure diverts the regions of the toilet paper into the drying band. These deviated regions are the low density regions described above, and are believed to be critical for frying the toilet paper of the present invention - despite the fact that said low density regions are subsequently satinated at a high density. The drying surface is also provided by heat contact, such as a Yankee drying drum. The cellulosic fiber coil is then brought into contact with the Yankee drying drum, and preferably, printed against it. The additional printing increases the local difference in density between the high and low density regions of the toilet paper. As indicated below, the toilet paper is then dried to the desired humidity level in the Yankee drying drum. The proper humidity level can be from about 0 3 to 0.4 percent, higher than the humidity levels, for conventional satin operations. After drying, the toilet paper is satinated in a medium of moisture level, between about 1.9 and 3.5 percent, and preferably between about 2.5 and 3.0 percent. The relatively high humidity levels, provide a greater densification in the pressures of the calibers, which are generally lower. However, humidity levels increase, the humidity profiles, are generally exaggerated, in the paper making machine. In addition, as the moisture levels increase, the sheet hardens, and from the point of view of softness, it decreases, possibly due to hydrogen bonding, to the transfer of the adhesive from the Yankee drying drum, etc. Increases in density from 15 to 25 percent are normal according to the glazing operation of the present invention. It is understood that the glazing operation increases the density of the toilet paper in its entirety, and may or may not provide a uniform percentage of increase in density, of all regions of the multiple density toilet paper. The satin is carried out, using two juxtaposed rollers to form a shrinkage of the reef between the rollers. As will be recognized by those skilled in the art, the glazing can be carried out using more than two rolls, with the rolls distributed in pairs to form multiple cuts.

Additionally, those skilled in the art will appreciate that the same roller can be used in more than one pair. The rollers can be axially parallel. However, in order to accommodate the desirable satin pressures with those of the present invention, one of the rollers may be domed. The axis of the other roller can be inclined to conform with the bulging of the first roller.

Alternatively, the axes of the rollers may be slightly oblique. Either or both of the two rollers, which form the shrinkage of the reef can be steel, coated rubber, coated material, coated paper, etc. Either or both of the rolls may be maintained at an optimum temperature for the life of the roll, for example, to prevent overheating of the roll, or at a temperature at which the substrate is heated. One of the rollers can be operated externally, the other can be operated by rubbing the first roller, so that the sliding is minimized. The pairs of rollers are loaded together, with a pressure of shrinkage of the reef, from about 90 to about 180 psi, and preferably with a shrinkage pressure of the reef from about 110 to about 150 psi. This filler provides a linear shrinkage pressure of the reef from 130 to 300 pli, and more preferably from about 175 to 250 pli. One of skill in the art will recognize that the width of the shrinkage of the seam can be obtained by dividing the linear pressure of contraction of the seam in pli between the contraction pressure of the seam in psi (pli / psi). The merits and techniques for the manufacture of the present invention are illustrated in the following examples, which are not limiting. Each of the samples shown below represents air-dried single-layer toilet paper. The first three examples are in accordance with prior art. The examples from the fourth to the sixth are in accordance with the present invention, and were selected to illustrate that the present invention is feasible, even at lower moisture levels.

For consistency purposes, smoothing measurements are reported by the side of each sample that makes contact with the Yankee dryer. Although not required by the protocol, each smoothing measurement represents an average of four samples (16 strokes for example) for that particular example, except as noted later in Example 6.

Each sample tested in Examples 1 to 5 was taken from a different roll. Softness measurements (in PSU), were taken using a Charmin brand toilet paper, in the form in which it is normally marketed as a standard product, by The Procter & Gamble Company of Cincinnati, Ohio, EJ EMPLOS Example 1 Double-sheet Kleenex brand toilet paper, manufactured by Kimberly-Clark Corporation of Dallas, Texas, was used for Example 1. The Kleenex double sheet toilet paper, of example 1, has a caliber of 9.7 mils, a smoothing of 01 01 microns, and a softness of -0.93 PSU.

Example 2 Charmin toilet paper, sold by the current transferee The Procter & Gamble Company of Cincinnati, Ohio, was manufactured in Albany, Georgia. This toilet paper was dried over a five grid screen, the Atlas fabric material was made according to commonly assigned US Patent 4, 239,065, issued to Trokhan. The material had a warp count of 44 fibers per inch, and a weft count of 33 fibers per inch. The toilet paper was satined, in a shrinkage of the rubber-to-steel seam at a pressure of from about 20 to 40 psi, and from about 1 to about 32 pli, in a medium of about 2.5 percent moisture level. The Charmin toilet paper of Example 2 had a caliber of 1 1 .2 mils, a smoothing of 995 microns, and a softness of 0.08 PSU.

Example 3 The Charmin toilet paper, sold by the current assignee The Procter & The Gamble Company of Cincinnati, Ohio, was manufactured in Mehoopany, Pennsylvania. This toilet paper was dried on a five grid screen, the Atlas fabric material, made in accordance with the commonly assigned US Patent 4,230,065, issued to Trokhan. The material had a warp count of 44 fibers per inch, and a weft count of 33 fibers per inch. The toilet paper was satined in a shrinkage of the rubber-to-steel seam at a pressure of from about 53 to 89 psi, and from about 53 to about 77 pli, in a medium of about 2.7 percent moisture level. The Charmin toilet paper of Example 3 had a caliber of 13.2 mils, a smoothing of 997 microns, and a smoothness of -0.28 PSU.

Example 4 A single-ply air-dried toilet paper in accordance with the present invention was manufactured in Albany, Georgia. This toilet paper was dried in a grid of five grids. Atlas weaving material was made in accordance with the commonly assigned US Patent 4,239,065, issued to Trokhan. The fabric had a warp count of 44 fibers per inch, and a weft count of 33 fibers per inch. This toilet paper was satined in a shrinkage of the rubber-steel seam at a pressure of 1 10 psi and 143 pli, and in a medium of moisture level of 2.1 percent. The toilet paper of Example 4 had a caliber of 9.4 mils, a smoothing of 805 microns, and a smoothness of 0.26 PSU.

Example 5 An air-dried single-ply toilet paper, according to the present invention, was manufactured in Albany, Georgia. This toilet paper was dried over a five grid screen. The Atlas fabric material was made according to commonly assigned US Patent 4,239,065, issued to Trokhan. The material had a warp count of 59 fibers per inch, and a weft count of 44 fibers per inch. The material was satinated in a rubber-to-steel shrinkage at a pressure of 1 10 psi and 143 pli, and in a moisture level medium of 1.9 percent. The toilet paper of Example 5 had a caliber of 8.9 mils, a smoothing of 793 microns, and a smoothness of 0.30 PSU.

Example 6 An air-dried single-ply toilet paper according to the present invention was manufactured in Albany, Georgia. This toilet paper was dried on a five grid screen. The Atlas fabric material was manufactured according to the commonly assigned US Patent 4,239,065, issued to Trokhan. The material had a warp count of 44 fibers per inch, and a weft count of 33 fibers per inch. This toilet paper was satinated in a shrinkage of the rubber-to-steel seam at a pressure of 175 psi and 285 pli, and in a medium of moisture level of 2.1 percent. Only one finished roll of the toilet paper of Example 6 was subjected to the smoothing test. The toilet paper of Example 6 had a caliber of 8.5 mils, a smoothing of 796 microns on the first side of the toilet paper making contact with the dryer, and a smoothing of 720 microns on the opposite side of the toilet paper. Both values are given in the following table. The results of Examples 1 through 6 are illustrated in Table I. For more information, Table I also provides the basis weights and the density of each sample.

TABLE I BASES WEIGHT (3,000 DENSITY POUNDS) EXAMPLE SOFTENING SOFTENING CALIBER FEET (GRAMS) NUMBER (PSU) (MICRAS) SQUARE (MILS) BY CC) 1 - . 1 -0.93 1011 17.9 9.7 0.118 2 0-08 995 18.0 11.2 0.103 3 - . 3 -0.28 997 18.6 13.2 0.090 4 0.26 805 16.7 9.4 0-114 0.3 793 17.2 8.9 0.124 6 0.46 696/720 17.1 8.5 0.129 As can be seen in Table I, the three examples according to the present invention have approximately the same density as the examples with the Kleenex brand.However, the smoothing was considerably improved, as illustrated graphically in Figure 1. In a similar manner, the smoothness of the two examples according to the present invention were greatly improved, with respect to the art. previous, even at the lowest gauge levels achieved with the present invention, as illustrated graphically in Figure 2. It will be appreciated by those skilled in the art, that the aforementioned parameters can be optimized if necessary. For example, it may be feasible to have a less smoothing toilet paper, if provided with the proper density. In particular, a toilet paper with a smoothing less than or equal to about 900 microns, and having a density of at least 0.120 grams per cubic centimeter may be feasible. Preferably both sides of said toilet paper have a smoothing less than or equal to about 900 microns, although either side meets this criterion, the toilet paper is made according to the present invention. The density of said toilet paper can preferably be increased to at least 130 grams per cubic centimeter. The smoothness of one side of the toilet paper may be less than or equal to about 900 microns, and the smoothness of the other side of the paper may be less than or equal to about 800 microns. More preferably, the smoothness of one side of the toilet paper may be less than or equal to about 800 microns, and the smoothness of the other side may be less than or equal to about 750 microns. All these variations are within the scope of the appended claims.

Claims (16)

1. R E I V I N D I C A C I O N E S 1. An air dried sheet of toilet paper comprising a single macroscopic plane, multiple density, fibrous cellulose structure which has two opposite faces, one of said faces has a smoothing less than or equal to about 800 microns.
2. 2. A sheet of toilet paper, as described in Claim 1, further characterized in that said toilet paper has a smoothing less than or equal to 750 microns.
3. 3. A sheet of toilet paper, as described in the Claim 2, further characterized in that said toilet paper has a smoothing less than or equal to 700 microns.
4. 4. A sheet of toilet paper, as described in Claim 1, further characterized in that said toilet paper has a density of at least 0.100 grams per cubic centimeter approximately.
5. 5. A sheet of toilet paper, as described in Claim 4, further characterized in that said toilet paper has a density of at least 0.110 grams per cubic centimeter.
6. 6. A sheet of toilet paper as described in claim 5, further characterized in that both of said faces of said toilet paper have a smoothness less than or equal to 800 microns approximately.
7. 7. A sheet of toilet paper as described in claim 4, further characterized in that said toilet paper has a caliper less than 1 1 mils.
8. 8. A sheet of toilet paper as described in Claim 7, further characterized in that said toilet paper has a smaller caliber of approximately 10 thousandths.
9. 9. A smooth air-dried toilet paper manufacturing process, wherein said process comprises the following steps: providing an aqueous dispersion of fibers for papermaking; provide a Fourdrinier band permeable to water; forming an embryonic coil of said fibers for the manufacture of paper on said band; provide an air drying band; transferring said embryonic coil to said air drying band; produce a current of air through said coil; provide a Yankee drying drum; drying said coil on said Yankee drying drum, up to a humidity level of from about 1.9 to about 3.5 percent; providing two axially parallel juxtaposed rollers, to form a contraction of the reef therebetween, said contraction of the reef being suitable for satining said embryonic coil; satin said embryonic coil in said contraction of the reef in said moisture level medium; and drying said embryo coil, to produce a multiple density hygroscopic paper of a single macroscopic plane, said toilet paper having a smoothing less than or equal to about 800 microns.
10. The process as described in Claim 9, further characterized in that said humidity level is from 2.5 to 3.0 percent.
11. The process as described in claim 9, further characterized in that said shrinkage of the reef produces a pressure during said sanding of said coil from about 10 to about 150 psi.
12. The process as described in Claim 11, further characterized in that said shrinkage of the reef produces a linear pressure during said sanding of said coil from about 175 to about 250 pli.
13. 13. A sheet of toilet paper which comprises a single macroscopic plane, multiple density, air-dried cellulosic fibrous structure having two opposite faces, one of said faces of said sheet having a smoothing of less than or equal to about 900 microns, said toilet paper has a density of at least 0.120 grams per cubic centimeter approximately.
14. 14. A sheet of toilet paper as described in Claim 13, further characterized in that said toilet paper has a density of at least 0.130 grams per cubic centimeter approximately.
15. 15. A sheet of toilet paper as described in Claim 1 3, further characterized in that both of said faces of said toilet paper have a smoothing less than about 900 microns.
16. 16. A sheet of toilet paper as described in the Claim 15, further characterized in that one of said faces of said toilet paper has a smoothing of less than about 800 microns. EXTRACT OF THE INVENTION A high density smooth toilet paper. The toilet paper has a relatively low caliber, as well as high smoothing and high density. The toilet paper is satinated from a multiple density coil, air dried.